Reeds Astro Navigation Tables 2025

Reeds annual astro-navigation tables are essential for boaters, providing all the information needed to navigate by the sun, moon, stars, and planets. They include forms to help determine True Altitude, Calculated Altitude, and Azimuth, as well as a pro forma for calculating Intercept. With 8 extra pages and an improved layout, there is plenty of space for making notes and calculations.

Format: Paperback / softback
Length: 80 pages
Publication date: 15 August 2024
Publisher: Bloomsbury Publishing PLC

This is the established book of annual astro-navigation tables compiled specifically for the needs of boaters. This superbly compact almanac and sight reduction tables contains all the information the ocean-going sailor needs in order to navigate by the sun, moon, stars, and planets, using tables devised by practical ocean navigators. This book, together with a sextant, enables sailors to navigate confidently and safely when out of the sight of land. The book continues to feature the well-received additions of the past few years, including forms to help determine True Altitude (for the sun, stars, and planets), Calculated Altitude (using the versine formula) and Azimuth (using the ABC Tables), as well as a pro forma for calculating Intercept. These tables, along with clear and easy-to-use star ID charts, mean you can resolve any calculation you're ever going to need. There is also an introductory section on practicing ashore, with helpful worked examples as an aide memoire. With 8 extra pages and an improved layout, there is plenty of space for making notes and calculations. Being so easy to use, Reeds' tables encourage active navigation and a better understanding by sailors of where they have been and where to go next – rewarding in itself and essential in the event of GPS failure.

Weight: 234g
Dimension: 211 x 298 x 10 (mm)
ISBN-13: 9781399416702